Job Description:

 Manage and oversee the execution and delivery of all aspects of the telephony components of the NG9-1-1

system.

Responsibilities:

· Minimum 12 years of experience in a particular technical and/or business application, product, platform, or methodology.

· Develop and maintain call-flow diagrams, signalling validation scripts, and interoperability matrices across PSAC I, PSAC II, and vendor sites.

· Collaborate with MSCI, Motorola, NICE, Cisco, and telecom carriers to resolve interoperability, signalling, and audio quality issues.

· Support testing, troubleshooting, and cutover events involving critical voice infrastructure.

· Design and validate call routing workflows per NENA STA-010, STA-012, and STA-019 standards.

· Configure and analyze SIP messages, SDP negotiation, and trunk performance across SBCs and gateways.

· Maintain mappings between ESRP, BCF, and CHS components for voice, text, and multimedia calls.

· Ensure correct implementation of ECRF/LVF call routing functions for location-based dispatching.

· Work with network and integration engineers to ensure ESInet-level QoS, DSCP tagging, and failover routing.

· Validate carrier connectivity for private IP trunk services.

· Support call path redundancy testing and performance benchmarking between PSAC I, PSAC II, and NGCS vendor data centers.

· Analyze SIP traces, CDRs, and packet captures to validate system behavior under load and failover.

· Collaborate with the Lead Test Engineer to develop test scripts and call-flow verification plans for production readiness.

 Minimum 12 years of experience in a particular technical and/or business application, product, platform, or

methodology.

 Develop and maintain call-flow diagrams, signalling validation scripts, and interoperability matrices across PSAC

I, PSAC II, and vendor sites.

 Collaborate with MSCI, Motorola, NICE, Cisco, and telecom carriers to resolve interoperability, signalling, and

audio quality issues.

 Support testing, troubleshooting, and cutover events involving critical voice infrastructure.

 Design and validate call routing workflows per NENA STA-010, STA-012, and STA-019 standards.

 Configure and analyze SIP messages, SDP negotiation, and trunk performance across SBCs and gateways.

 Maintain mappings between ESRP, BCF, and CHS components for voice, text, and multimedia calls.

 Ensure correct implementation of ECRF/LVF call routing functions for location-based dispatching.

 Work with network and integration engineers to ensure ESInet-level QoS, DSCP tagging, and failover routing.

 Validate carrier connectivity for private IP trunk services.

 Support call path redundancy testing and performance benchmarking between PSAC I, PSAC II, and NGCS

vendor data centers.

 Analyze SIP traces, CDRs, and packet captures to validate system behavior under load and failover.

 Collaborate with the Lead Test Engineer to develop test scripts and call-flow verification plans for production

readiness.